org.jboss.bpm.console.client.report.RenderReportAction.java Source code

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Here is the source code for org.jboss.bpm.console.client.report.RenderReportAction.java

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.bpm.console.client.report;

import com.google.gwt.http.client.*;
import com.google.gwt.user.client.Timer;
import com.mvc4g.client.ActionInterface;
import com.mvc4g.client.Controller;
import org.jboss.bpm.console.client.ApplicationContext;
import org.jboss.bpm.console.client.BpmConsoleClientFactory;
import org.jboss.bpm.console.client.LoadingStatusAction;
import org.jboss.bpm.console.client.util.ConsoleLog;
//import org.jboss.errai.workspaces.client.framework.Registry;

import java.io.IOException;

/**
 * Engage a report generation and update {@link org.jboss.bpm.console.client.report.ReportView}
 * when the report is finished.
 *
 * @author Heiko.Braun <heiko.braun@jboss.com>
 */
public class RenderReportAction implements ActionInterface {

    public final static String ID = RenderReportAction.class.getName();

    private final ApplicationContext appContext;

    public RenderReportAction(BpmConsoleClientFactory clientFactory) {
        this.appContext = clientFactory.getApplicationContext();
    }

    public void execute(final Controller controller, Object object) {
        final RenderDispatchEvent event = (RenderDispatchEvent) object;

        final String url = event.getDispatchUrl();
        RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, url);

        ConsoleLog.debug(RequestBuilder.POST + ": " + url);
        final ReportLaunchPadView view = (ReportLaunchPadView) controller.getView(ReportLaunchPadView.ID);

        view.reset();
        view.setLoading(true);

        try {
            controller.handleEvent(LoadingStatusAction.ON);
            //view.setLoading(true);

            String parameters = event.getParameters();
            final Request request = builder.sendRequest(parameters, new RequestCallback() {
                public void onError(Request request, Throwable exception) {
                    // Couldn't connect to server (could be timeout, SOP violation, etc.)
                    handleError(controller, url, exception);
                    controller.handleEvent(LoadingStatusAction.OFF);
                }

                public void onResponseReceived(Request request, Response response) {
                    try {
                        if (response.getText().indexOf("HTTP 401") != -1) // HACK
                        {
                            appContext.getAuthentication().handleSessionTimeout();
                        } else if (200 == response.getStatusCode()) {
                            // update view
                            view.displayReport(event.getTitle(), event.getDispatchUrl());
                        } else {
                            final String msg = response.getText().equals("") ? "Unknown error" : response.getText();
                            handleError(controller, url,
                                    new RequestException("HTTP " + response.getStatusCode() + ": " + msg));
                        }
                    } finally {
                        controller.handleEvent(LoadingStatusAction.OFF);
                        view.setLoading(false);
                    }
                }
            });

            // Timer to handle pending request
            Timer t = new Timer() {

                public void run() {
                    if (request.isPending()) {
                        request.cancel();
                        handleError(controller, url, new IOException("Request timeout"));
                    }

                }
            };
            t.schedule(20000);

        } catch (Throwable e) {
            // Couldn't connect to server
            controller.handleEvent(LoadingStatusAction.OFF);
            handleError(controller, url, e);
            view.setLoading(false);
        }
    }

    protected void handleError(Controller controller, String url, Throwable t) {
        final String out = "<ul>" + "<li>URL: '" + url + "'\n" + "<li>Action: '" + ID + "'\n" + "<li>Exception: '"
                + t.getClass() + "'" + "</ul>\n\n" + t.getMessage();

        ConsoleLog.error(out, t);
        appContext.displayMessage(out, true);

        controller.handleEvent(LoadingStatusAction.OFF);
    }
}